Friday, June 16, 2017

Per “The Aviation Zone”: “In the early-1970s, five American companies submitted proposals to the U.S. Air Force after it issued its Advanced Medium STOL Transport (AMST) requirement for a new jet-powered tactical airlifter to replace the venerable Lockheed C-130 Hercules. In 1972, two proposals were accepted for construction as the Boeing YC-14 and McDonnell Douglas YC-15 prototypes.

Both test aircraft were designed to a common cargo specification and utilized off-the-shelf engines to achieve the "Coanda Effect" (air turning on the convex side of an aerodynamic surface) to maximize lifting capability during STOL (Short Takeoff and Landing) operations.…”

Two YC-15s (#72-1875 and #72-1876) were built with two different size wingspans, 132 feet (40.42m) and 110 feet (33.6m), respectively. Both aircraft are 124 feet (37.86m) in length.

First flown on 26 August 1975, a 600-hour test program followed. Funding cuts eventually cancelled the AMST program in 1979. Both the YC-14 and the YC-15 satisfied the AMST performance requirements, which would later be incorporated into the design of the larger C-17 Globemaster III transport.”

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About Me

My name is Ron Downey. I am a retired Aeronautical Engineer who worked for McDonnell Aircraft and McDonnell Douglas Corp for 40 years and collected many photos, info and brochures of their products. While the F-4 is my favorite, I have many other MDC items and these will be scanned and presented here. In addition, I have been an aviation historian for most of my adult life and I have amassed a large amount of info over my 50+ years of collecting and will be bringing that here also. My aim is to bring aviation material (Photos, articles; etc) to this blog before it is lost; but, not in-depth explanations as any good search engine can be used for that purpose. I may be contacted at: aviationarchives(at)gmail.com

Copyright and Photo Credits

As all of this info was originally for my use only in order to build plastic scale models, I never paid too much attention to copyrights or proper photo credits. Therefore, if something is not credited correctly, please let me know and I will be happy to delete or properly credit the material. (I have in my possession all the items and original material and these are all new scans, except where noted.) All photos and info are credited to McDonnell Douglas unless otherwise noted. Feel free to use any of this info with the credit of Ron Downey via Aviation Archives. I can be reached at: aviationarchives(at)gmail.com.